EP0474099A3 - Tape driving mechanism for magnetic recording apparatus - Google Patents

Tape driving mechanism for magnetic recording apparatus Download PDF

Info

Publication number
EP0474099A3
EP0474099A3 EP19910114382 EP91114382A EP0474099A3 EP 0474099 A3 EP0474099 A3 EP 0474099A3 EP 19910114382 EP19910114382 EP 19910114382 EP 91114382 A EP91114382 A EP 91114382A EP 0474099 A3 EP0474099 A3 EP 0474099A3
Authority
EP
European Patent Office
Prior art keywords
capstan
tape
driving mechanism
magnetic tape
tape driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910114382
Other versions
EP0474099A2 (en
EP0474099B1 (en
Inventor
Hideo Kurokawa
Tsutomu Mitani
Hirokazu Nakaue
Hideaki Yoshio
Hideyuki Hashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0474099A2 publication Critical patent/EP0474099A2/en
Publication of EP0474099A3 publication Critical patent/EP0474099A3/en
Application granted granted Critical
Publication of EP0474099B1 publication Critical patent/EP0474099B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

A tape driving mechanism for a magnetic recording apparatus wherein a capstan (1) is rotated to advance a magnetic tape (3) by pinching the magnetic tape (4) between the capstan (1) and a pinch roller (2). The pinch roller (2) is pressed onto the magnetic tape (3) against the capstan. The capstan surface is coated with a diamond-like carbon film (4) which is smooth and highly wear-resistant. The difference between the tangential speed of the capstan and the tape transfer speed is almost zero; thus, the state of contact is static. A static frictional coefficient between the diamond-like carbon film (4) of the capstan (1) and the magnetic tape (3) is almost equal to twice the static frictional coefficient between the metal surface of the capstan and the magnetic tape in the conventional tape driving mechanism. The tape driving force remains sufficient, if the pressure exerted by the pinch roller (2) is reduced to half the value employed in the conventional tape driving mechanism. The diamond-like carbon film (4) may be coated on a rough surface of the capstan (1). <IMAGE>
EP91114382A 1990-08-29 1991-08-27 Tape driving mechanism for magnetic recording apparatus Expired - Lifetime EP0474099B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP22940090 1990-08-29
JP229400/90 1990-08-29
JP313501/90 1990-11-19
JP31350190 1990-11-19
JP405741/90 1990-12-25
JP40574190 1990-12-25

Publications (3)

Publication Number Publication Date
EP0474099A2 EP0474099A2 (en) 1992-03-11
EP0474099A3 true EP0474099A3 (en) 1993-09-22
EP0474099B1 EP0474099B1 (en) 1996-04-17

Family

ID=27331521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91114382A Expired - Lifetime EP0474099B1 (en) 1990-08-29 1991-08-27 Tape driving mechanism for magnetic recording apparatus

Country Status (5)

Country Link
US (1) US5370292A (en)
EP (1) EP0474099B1 (en)
KR (1) KR940006554B1 (en)
AT (1) ATE137046T1 (en)
DE (1) DE69118785T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660487A (en) * 1992-08-06 1994-03-04 Sharp Corp Magnetic rcording and reproducing device
KR100195605B1 (en) * 1993-10-28 1999-06-15 모리시따 요오이 찌 Method for preparation for diamond-like carbon and driving apparatus for magnetic recording tape
US6609645B1 (en) 2000-02-24 2003-08-26 Mountain Engineering Ii, Inc. Porous roller bearing
US6570740B1 (en) * 2000-08-21 2003-05-27 Hewlett-Packard Development Company, L.P. Tape guide with wear resistant coating
JP2003281709A (en) * 2002-03-27 2003-10-03 Tdk Corp Magnetic recorder and magnetic recording and reproducing system
KR20030083025A (en) * 2002-04-18 2003-10-30 배기서 The Scouring Methods of Polyester and Polyester Blend Fabrics Using electrolytic water.
JP2005063565A (en) * 2003-08-13 2005-03-10 Fuji Photo Film Co Ltd Magnetic tape drive
JP6935733B2 (en) * 2017-11-24 2021-09-15 トヨタ自動車株式会社 Manufacturing equipment and method for electrode laminate
WO2019171665A1 (en) * 2018-03-09 2019-09-12 ソニー株式会社 Magnetic recording tape, production method therefor, and magnetic recording tape cartridge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106319A (en) * 1958-07-29 1963-10-08 Fischer Markus Adhesive drive for a tape-shaped signal carrier
US3141593A (en) * 1958-12-08 1964-07-21 Ampex Capstan construction
DE1280317B (en) * 1965-09-17 1968-10-17 Telefunken Patent Method and device for pressing diamond particles into the surface of a drive shaft for tape-shaped recording media
GB1136274A (en) * 1965-05-17 1968-12-11 Ampex Capstan for tape drive
GB2100912A (en) * 1980-12-15 1983-01-06 Tokyo Shibaura Electric Co Tape-driving element and process for producing same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938956A (en) * 1982-08-25 1984-03-03 Sanyo Electric Co Ltd Capstan of tape recorder
JPS59148174A (en) * 1983-02-14 1984-08-24 Sanyo Electric Co Ltd Capstan device of tape recorder
JPS61110388A (en) * 1984-11-02 1986-05-28 Fuji Photo Film Co Ltd Magnetic tape cassette
JPS62139873A (en) * 1985-12-13 1987-06-23 Sumitomo Electric Ind Ltd Coating method for hard carbon film
US4794680A (en) * 1985-12-20 1989-01-03 Union Carbide Corporation Novel wear-resistant laser-engraved ceramic or metallic carbide surfaces for friction rolls for working elongate members, method for producing same and method for working elongate members using the novel friction roll
JPH02126459A (en) * 1988-11-04 1990-05-15 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing drum
JPH0792953B2 (en) * 1989-01-30 1995-10-09 株式会社東芝 Tape drive and method of manufacturing the same
JP2676903B2 (en) * 1989-04-14 1997-11-17 松下電器産業株式会社 Method of forming hard carbon thin film
JPH03201244A (en) * 1989-12-27 1991-09-03 Sanyo Electric Co Ltd Tape sliding part for magnetic recording and reproducing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106319A (en) * 1958-07-29 1963-10-08 Fischer Markus Adhesive drive for a tape-shaped signal carrier
US3141593A (en) * 1958-12-08 1964-07-21 Ampex Capstan construction
GB1136274A (en) * 1965-05-17 1968-12-11 Ampex Capstan for tape drive
DE1280317B (en) * 1965-09-17 1968-10-17 Telefunken Patent Method and device for pressing diamond particles into the surface of a drive shaft for tape-shaped recording media
GB2100912A (en) * 1980-12-15 1983-01-06 Tokyo Shibaura Electric Co Tape-driving element and process for producing same

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 9025, Derwent Publications Ltd., London, GB; AN 90-190311 & JP-A-2 126 459 (MATSUSHITA ELECTRIC. INDUSTRY K.K.) 15 May 1990 *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 469 (P-1281)27 November 1991 & JP-A-32 01 244 ( SANYO ELECTRIC CO. LTD. ) 3 September 1991 *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 141 (P-283)(1578) 30 June 1984 & JP-A-59 38 956 ( SANYO DENKI K.K. ) 3 March 1984 *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 282 (P-323)(1719) 22 December 1984 & JP-A-59 148 174 ( SANYO DENKI K.K. ) 24 August 1984 *

Also Published As

Publication number Publication date
KR940006554B1 (en) 1994-07-22
ATE137046T1 (en) 1996-05-15
EP0474099A2 (en) 1992-03-11
EP0474099B1 (en) 1996-04-17
KR920005098A (en) 1992-03-28
US5370292A (en) 1994-12-06
DE69118785D1 (en) 1996-05-23
DE69118785T2 (en) 1996-09-19

Similar Documents

Publication Publication Date Title
EP0474099A3 (en) Tape driving mechanism for magnetic recording apparatus
EP0306230A3 (en) Recording and/or reproducing apparatus for a magnetic tape cassette
GB2176170A (en) Guide walls for magnetic tape cassettes
DE3163761D1 (en) Guiding device for a tape carrier, particularly for a magnetic tape
MY131498A (en) Magnetic-tape apparatus comprising a pressure-roller device
EP0362891A3 (en) Camera apparatus for magnetically recording on film
MY120656A (en) Magnetic recording and/or reproducing apparatus having tape transport mechanism with capstan and roller arrangement.
FR2436465A1 (en) TRANSPORT DEVICE FOR A RECORDING TAPE
JP3038764B2 (en) Pinch roller device
US3029992A (en) Pressure roller mechanism
US5620150A (en) Tension servo apparatus for magnetic tape
AU4936490A (en) A drive mechanism for a cassette loading mechanism and a tape loading mechanism for a recording and a reproducing apparatus
AU4937790A (en) A cassette loading mechanism for a recording and reproducing apparatus
US4442963A (en) Tape advancing method and apparatus with fast tape advance mode
US4431125A (en) Tape advancing method and apparatus with fast tape advance mode
GB2117353A (en) Driving and tensioning magnetic tape
US4376503A (en) Magnetic tape transducer apparatus drive arrangement
SU777714A1 (en) Magnetic tape transporting unit
KR950002040Y1 (en) Tape winding device
JPH0531698Y2 (en)
MY111557A (en) Tape loading mechanism.
JPS594780B2 (en) Jikitape makitori sochi
JPS57181462A (en) Endless tape driving device
JPS6450267A (en) Magnetic recording and reproducing device
JPS58177549A (en) Tape recorder

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910827

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HASHI, HIDEYUKI

Inventor name: KUROKAWA, HIDEO

Inventor name: NAKAUE, HIROKAZU

Inventor name: MITANI, TSUTOMU

Inventor name: NAKAMURA, YUJI

Inventor name: YOSHIO, HIDEAKI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HASHI, HIDEYUKI

Inventor name: NAKAUE, HIROKAZU

Inventor name: NAKAMURA, YUJI

Inventor name: YOSHIO, HIDEAKI

Inventor name: MITANI, TSUTOMU

Inventor name: KUROKAWA, HIDEO

17Q First examination report despatched

Effective date: 19950131

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

REF Corresponds to:

Ref document number: 137046

Country of ref document: AT

Date of ref document: 19960515

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 69118785

Country of ref document: DE

Date of ref document: 19960523

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20100812

Year of fee payment: 20

Ref country code: DE

Payment date: 20100825

Year of fee payment: 20

Ref country code: FR

Payment date: 20100824

Year of fee payment: 20

Ref country code: IT

Payment date: 20100823

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100825

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69118785

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69118785

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20110826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110828